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c. F. CULLEN.

SEWAGE SYSTEM.

APPLICAT|0N FILED MAY 16. 1917.

11,818,976, Patented 001. 14,1919.

WITNESSES ATTORNEY specification.

calities not provided with the benefits and CHRISTOPHER FRANKLIN CUIQLEN, OF MOBILE, ALABAMA.

SEWAGE SYSTEM.

Application filed May 16,

To all whom it may concern v Be it known that I, CHRISTOPHER FRANK- LIN OULLEN, a citizen of the United States, residing at Mobile, in the county of Mobile and State of Alabama, have invented certain new and useful Improvements in Sewage Systems, of which the following is a This invention relates to sewage systems, and the primary obj ect'of the invention is to provide an improved system and nethpd. of conveying the sewage from dwellings in 10- advantages of the city sewage systems.

A further object of-the invention is to provide a systemof this character that can be installed at a minimum expense, and will consist of but few parts so that cleaning and renovating may be accomplished when desired.

A further object of the invention is to provide a system of this character that will absolutely prevent contamination of the soil and strata adjacent to the system.

A further object of the invention is to provide a system wherein advantage is taken of action of liquefaction, so that the sewage and refuse is absolutely dissolved thus assuring easy and positive operation of the system.

The above and additional objects are ac complished'by such means as are illustrated in the preferred embodiment and in the .accompanying drawings, wherein like characters denote like or corresponding parts throughout the several views, in which:

Fi e 1 is a side elevation of the system showing the same applied to a dwelling, parts of the system being broken away to disclose the interior. w

- Fig. 2 is a section on the line 22 of Fig. 1. I

Referring to the" drawing, wherein is illustrated the preferred form of my invention, and in which like numerals of reference indicate corresponding parts throughout the several .views, the dwelling A is provided, at a convenient point, with a cylindrical base 1, preferably constructed from vitrified. clay, the same resting upon the floor and of a height sufficient to provide a convenient seat. 1 Suspended within the base is a bowl 2 which is cemented 'or otherwise permanently fixed to the base and is provided with a hinged cover The center of the bowl has a suitable opening 4, while adjacent the Specification of Letters Patent.

1917. Serial N0. 169,084.

marginal edge thereof, at the rear, is a small opening in alinement with a corresponding opening in the base 1. Through these alined openings, the water pipe 4 extends and this may be connected with a suitable source of water supply, such as a tank or the like for Patented Oct. 14., 1919.

the purpose of flushing the bowl. The base 1 also has an opening below the bowl to which is connected an air pipe 5 which serves as an air vent and leads upwardly through the roof of the dwelling.

A frustd-conical receptacle 6' is mounted in inverted position in the base 1 and has a connecting pipe 7, in longitudinal alinement with the opening A in the bowl, and which extends through the floor or under-pinning of the dwelling Where it is connected to the system proper. Preferably above the ground line, and beneath the under-pinning of the dwelling is a return bend 8 which forms a trap .9 and the opposite end of the. return bend is connected to an elbow 10 which extends downwardly to a point below the ground line and is received in the upper end of a tank 11. i

This tank is also constructed from vitrified clay, so that it will be -absolutely nonabsorbent to prevent the slightest possibility of the contents gaining access to the surrounding soil, thus insuring the soil against contamination. The tank 11 is constructed in two cylindrical portions 13 and 14: joined together as at 12, and constituting a septic chamber. The septic chamber is provided with a restricted upper portion 14 in which the elbow 10 extends and the top of this restricted portion is flush with the ground surface and has a cover 15 of the same material as that from which the tank is constructed, and this cover is cemented to the tank to prevent odors from escaping therefrom.

Mounted in spaced relation from the tank 11 is a relatively smaller tank designated as the dissolving or liquefying chamber 1b. This chamber is also constructed from vitrified clay and is of substantially the same diameter as the septic tank. Thetwo tanks are connected by a conveying. duct 17 of siphon form. This duct extends from a point within the septicchamber at the bottom thereof upwardly to a point ad acent thetop where it is extended from the side and forms an elbow 18. An inverted U- shaped portion of the duct forms a contmuation of the elbow, and the end of the U- shaped portion is projected downwardly into the chamber 16 to a point substantially mid-- conveying duct 19 similar in construction to the duct 17 and this duct is connected to the tank 15 in the same manner as the duct 17 is connected to the septic chamber, so

that the entrance to the duct is at a pointnear the base of the tank at the interior thereof as designated at 20;. This duct 19 includes an inverted U-shaped portion, one

end of which is connected to an elbow 22. a

An outlet pipe 23 is constructed from a plurality of pipe sections, preferably formed from tile or non-absorbent material, and this outlet pipe is disposed at an angle as shown. to advantage in Fig. 1. Beneath the outlet pipe is a bed of cinders 'or sawdust 24 which should be of considerable depth, so

that the discharge from the outlet pipe will be easily received by the bed 24: preferably through the medium of capillary attraction.

ed upon concrete bases 25 and, of course, the entire system is placed considerably below the surface of the ground as illustrated by Fig. 1 of the drawing.

The siphon shaped bends 17 and 21 provide a single means for keeping the water in the tank 11 at the level 26, thus enabling the tank to be utilized to its full capacity.

In operation, the system will be first filled with water to determine whether or not the joints are absolutely water-tight and when it is found that no leaks occur the system is ready for use and the water will be maintained in the system up to a depth indicated by the water line 26. The trap 9 will also maintain a quantity of water at all times. The sewage will be deposited in the septic chamber after the bowl has been flushed with a small quantity of water. In this connection, it is pointed out that a minimum quantity of water will be necessary thus making the system advantageous in localities where a plentiful supply is not available. It will be obvious that as the chamber 13 is filled the dissolved sewage will pass through the conveying duct 17 into the liquefaction or dissolving chamber 16, and by virtue of the disposition of the ducts 17 and 21 the waterline 26 will remain practically the same after No sediment will be formed in the septic chamber, since the sewage is entirely assimilated by the bacterial action that occurs in the tank. The water level, which will be maintained at all times, positively prevents the escape of odors from the receptacle 6, and this is further assured by the quantity of water maintained in the trap 9.

From the foregoing it will be observed that a very simple and durable sewage sys tem has been provided, the details of which embody the preferred form. I desire it to be understood, however, that slight changes in the minor details of construction may be made without departing from the spirit of the invention or the scope of the claims here unto appended. This bed and the tanks 11 and 16 are mount- I claim:

1. In a sewage disposal system, a septic tank and an outlet pipe on a lower level than the upper end of the tank, in combination with an intermediate siphon-shaped connection extending to the level of the upper portion of the tank and communicating with the tank below said level.

2. In a sewage disposal system, a septic tank having an outlet leading from the lower portion thereof, in combination with an inverted U-shaped duct directly connected to the outlet and exten'ding'to the level of the upper portion of the tank.

3. In a sewage disposal system the combination of a septic tank having an outlet leading through theside thereof, and a lower tank having an outlet leading through the side thereof, with two inverted U-sha ed ducts leading respectively from said out ets, the duct leading from the outlet of the firstnamed tank leading to the second-named tank, and both ducts extending to the level of the upper portion of the first-named tank.

In testimony whereof I aflix my signature in presence of two witnesses.

CHRISTOPHER FRANKLIN CULLEN.

Witnesses:

J NO. H. WARTERS, JOHN S. MGDONNELL. 

